52222251 has 8 divisors (see below), whose sum is σ = 69754320. Its totient is φ = 34752512.

The previous prime is 52222237. The next prime is 52222271. The reversal of 52222251 is 15222225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52222251 - 2¹³ = 52214059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52222231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13590 + ... + 17003.

It is an arithmetic number, because the mean of its divisors is an integer number (8719290).

Almost surely, 2^52222251 is an apocalyptic number.

52222251 is a deficient number, since it is larger than the sum of its proper divisors (17532069).

52222251 is a wasteful number, since it uses less digits than its factorization.

52222251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31165.

The product of its digits is 800, while the sum is 21.

The square root of 52222251 is about 7226.4964540225. The cubic root of 52222251 is about 373.7821254773.

Adding to 52222251 its reverse (15222225), we get a palindrome (67444476).

The spelling of 52222251 in words is "fifty-two million, two hundred twenty-two thousand, two hundred fifty-one".